Digestive System
What is the process of breaking down food called?
Digestion
What is the basic unit of the nervous system?
A nerve cell (Neuron)
What is the main function of hormones?
To regulate body functions.
What is the main organ of the excretory system?
Kidneys
What is the main function of the immune system?
To fight infections.
Name the first part of the digestive system.
The Mouth
What does the central nervous system consist of?
The brain and spinal cord.
Name one gland in the endocrine system.
Pancreas, Hypothalamus, Pituitary gland, Pineal gland, Thyroid gland, or Adrenal glands
What waste product do kidneys filter from the blood?
Excess water and/or dead cell materials.
What types of blood cells are part of the immune system?
White blood cells.
What is the role of the liver in digestion?
Produce Bile
What is the function of neurons (nerve cells)?
To pass electrical signals through the body.
How do hormones affect growth?
Our bodies produce hormones that start the process of puberty in adolescents, makes our bodies grow taller, develop adult reproductive organs, and influence bone and muscle development.
How does the body lose water?
Urine, sweat, and breathing are the main sources of water loss.
How does the body respond to an infection?
White blood cells find the infection.
Inflammation occurs when blood flow increases around the location of the infection.
Antibodies fight the source of the infection.
Where does the majority of nutrient absorption occur?
The small intestine
How do reflexes work?
What is the role of the pancreas?
It helps in digesting food and regulating blood sugar by producing insulin.
What is the role of the bladder?
To store urine until it is released from the body.
How is the body signaled to increase production of "feel good" hormones?
TRICK QUESTION
Everyone gets 400 points!
What are villi and their function?
Villi are small folds of tissue in the small intestine that move food through and absorb nutrients.
Use a machine that monitors the electrical signals sent by the nervous system to different parts of the body.
Explain how the endocrine system regulates metabolism.
Explain how the excretory system maintains homeostasis.
Homeostasis- stable internal conditions
Excess water in the body? Excretory system forms more urine
Waste products build up in the body? Excretory system is responsible for flushing out waste.
When it's hot- we sweat from our sweat glands.
Explain how vaccines help protect the body.
Vaccines introduce weakened or dead viruses to the body, allowing the body to build defensive antibodies against that virus. This prepares the body with ready defenses for when an undamaged virus infection occurs.